Trevor Tweeten shot Richard Mosse'e "The Enclave (2013)" in 16mm color infrared using Arriflex 416 on Steadicam. Stock used was discontinued Kodak Aerochrome sold by this supplier, i.e. http://www.tarquinius.de/. He appears to have extinguished his supply and if memory serves correct had been selling 400ft 16mm rolls at $400/$500 and up. The making of "The Enclave" with sample infrared footage, i.e. http://vimeo.com/67115692

How serious is your question? It is not a trivial undertaking in this day and age of the Digital Illumanti. You could potentially contact Edward Nowill in the UK to slit and reperforate bulk 100 ft rolls of b/w infrared 35mm into double perf 16mm stock, i.e.

Thanks, Carl. I overlooked the polyester spec. That's right. Edward can only reperf acetate based stock. However, I just found out yesterday that Wittner in Germany can reperf unperforated 35mm stock into 2R or 1R 16mm film. Minimum order appears to be be 1000 ft. They maybe able to handle the polyester as they are new machines.

The specs say that the 35mm stock is polyester base. I understand Nowill can't slit polyster film. Is that correct?

You can probably accomplish with color infrared film whatever you would accomplish with B&W infrared film.

Usually B&W infrared film is shot through a Red or an IR-only filter. Shoot IR Ektachrome as usual through the Wratten #12 filter. Then, to simulate IR-only B&W, bypass the images in the yellow and magenta dye layers by printing the color picture onto B&W panchro film through a red filter. To simulate Red + IR B&W, also allow some of the image in the magenta dye layer when printing the color picture onto B&W panchro. It might be simplest to do this by double exposing the B&W panchro: once through a red filter; once, more weakly, through a green filter.

The spectral sensitivity curves of B&W and color IR films are published in Kodak Publication N-17 (1971). They all quit at around 900 nm. There's a feast of other information about IR photography in Kodak Publication M-28 (1972).